Physics, 28.01.2020 12:31, oomale

On a trip a motorist travels at 80 km/h for the first 200 km, and 60 km/h for the remainder of the trip. if the trip is 300 km in total, calculate the average speed for the whole trip.

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On a trip a motorist travels at 80 km/h for the first 200 km, and 60 km/h for the remainder of the t...